# Physics

Browse 22 online physics tools for working with physics files and data. Use them in your browser; text inputs are not stored and uploaded files are deleted after 6 hours.

> Canonical page: https://elysiatools.com/en/tags/physics

## Overview

Explore 22 browser-based physics tools for processing, converting, validating, and managing physics files and data without installing software.

## Frequently asked questions

### What can I do with Physics tools?

You can process, convert, validate, and manage physics files and data through the browser-based tools in this category.

### Do I need to install software?

No software installation is needed. You can operate the tools through the browser interface.

### How is my data handled?

Processing runs on Elysia Tools servers. Text inputs are not stored, and uploaded files are automatically deleted after 6 hours.

## Tools

- [Buoyancy Calculator (Archimedes, F = ρ·V·g)](https://elysiatools.com/en/tools/buoyancy-calculator): Compute buoyant force, fluid density, or displaced volume from any two, with optional float/sink analysis
- [Density Calculator (ρ = m/V)](https://elysiatools.com/en/tools/density-calculator): Compute density, mass, or volume from the other two, with specific gravity and a float/sink check
- [Dimensional Analysis Unit Cancellation Tutor](https://elysiatools.com/en/tools/dimensional-analysis-unit-cancellation-tutor): Step-by-step factor-label unit cancellation with inverted-factor diagnosis and optional student-answer checking.
- [Doppler Effect Calculator (Frequency Shift)](https://elysiatools.com/en/tools/doppler-effect-calculator): Compute observed frequency and frequency shift for a moving source and/or observer
- [Electronvolt to Joule](https://elysiatools.com/en/tools/electronvolt-to-joule): Convert electronvolts to joules with configurable precision
- [Force Calculator (F = m·a)](https://elysiatools.com/en/tools/force-calculator): Compute force, mass, or acceleration from Newton's second law, with weight on Earth
- [Free Fall Calculator (h = ½gt²)](https://elysiatools.com/en/tools/free-fall-calculator): Compute distance, time, or final velocity for free fall from rest, given any one plus gravity
- [Frequency ⇄ Wavelength Converter (Hz/kHz/MHz/GHz/THz ⇄ m/cm/mm/nm)](https://elysiatools.com/en/tools/frequency-wavelength): Convert between frequency and wavelength with selectable medium; results in all common frequency and length units
- [Half-Life Calculator](https://elysiatools.com/en/tools/half-life-calculator): Exponential decay for radioactive isotopes and drugs: remaining amount, derived half-life, time to target, or steady-state accumulation. Uses N(t) = N0·e^(-λt).
- [Joule to Electronvolt](https://elysiatools.com/en/tools/joule-to-electronvolt): Convert joules to electronvolts with configurable precision
- [Kinetic Energy Calculator (KE = ½mv²)](https://elysiatools.com/en/tools/kinetic-energy-calculator): Compute kinetic energy, mass, or velocity from the other two, with momentum and km/h conversion
- [Momentum Calculator (p = mv)](https://elysiatools.com/en/tools/momentum-calculator): Compute linear momentum, mass, or velocity from the other two, with kinetic energy and km/h conversion
- [Pendulum Period Calculator (T = 2π√(L/g))](https://elysiatools.com/en/tools/pendulum-calculator): Compute period, length, or gravity of a simple pendulum, plus amplitude-based peak speed and energy
- [Physics Kinematics Problem Solver](https://elysiatools.com/en/tools/physics-kinematics-problem-solver): Solve 1D constant-acceleration kinematics problems and 2D projectile motion, with a full step-by-step derivation. Enter any 3 of the 5 quantities (displacement, initial velocity, final velocity, acceleration, time) and the solver finds the other two, showing each formula, the substitution, and the result. For projectiles, enter launch speed/angle/height to get range, time of flight, and max height.
- [Potential Energy Calculator (PE = mgh)](https://elysiatools.com/en/tools/potential-energy-calculator): Compute gravitational potential energy, mass, or height from the other two, with impact velocity
- [Pressure Calculator & Converter (P=F/A, Pa/kPa/bar/atm/psi)](https://elysiatools.com/en/tools/pressure-conversion): Solve pressure, force, or area from P=F/A, and convert between Pa, kPa, MPa, bar, atm, psi, Torr, inHg, kgf/cm²
- [Projectile Motion Calculator (Range, Height, Time)](https://elysiatools.com/en/tools/projectile-motion-calculator): Compute range, max height, flight time, and the full trajectory of a projectile given speed, angle, and optional initial height
- [Scientific Constants Query](https://elysiatools.com/en/tools/scientific-constants-query): Search and display scientific constants with customizable language and output format
- [Significant Figures Sandbox](https://elysiatools.com/en/tools/significant-figures-sandbox): Practice significant-figure rules with step-by-step feedback: count sig figs, round to N sig figs, convert to scientific notation, and propagate through +/−/×/÷.
- [Torque Calculator (τ = rF sinθ)](https://elysiatools.com/en/tools/torque-calculator): Compute torque, force, or lever arm from τ = r·F·sin(θ), with the perpendicular force component shown
- [Unit Converter with Formula Display](https://elysiatools.com/en/tools/unit-converter-with-formula): Convert common physical, chemistry, cooking, medical, and information units with the formula and dimensional analysis visible.
- [Wavelength Calculator (λ = v/f, period, wave number, angular frequency)](https://elysiatools.com/en/tools/wavelength-calculator): Solve wavelength, frequency, or wave speed from v=f·λ, with derived period, angular frequency, wave number, and photon energy

## Related content

- [Math](https://elysiatools.com/en/tags/math): Browse 502 online math tools for working with math operations, data, and files in your browser. Text inputs are not stored, and uploaded files are deleted after 6 hours.
- [Conversion](https://elysiatools.com/en/tags/conversion): Browse 369 online conversion tools for transforming data and files between supported formats. Use them in your browser with secure server-side processing.
- [Mass](https://elysiatools.com/en/tags/mass): Browse 22 online mass tools for working with mass-related formats and operations in your browser. No software installation is needed.
- [Speed](https://elysiatools.com/en/tags/speed): Browse 53 online speed tools for processing, converting, validating, and managing speed data. Use them in your browser with server-side processing.
- [Joule](https://elysiatools.com/en/tags/joule): Browse 12 online Joule tools for working with joule-related values and data in your browser. Text inputs are not stored, and uploaded files are deleted after 6 hours.
- [Angle](https://elysiatools.com/en/tags/angle): Browse 28 online angle tools for working with angle data and operations. Use them in your browser with server-side processing.
